The Width of Shore Platforms; A Theoretical Approach

ABSTRACT

Two models were devised to investigate the development of wave-cut shore platforms, and in particular, how platform width changes through time. One model considers the rates of erosion at the high and low tide levels; whereas the other is concerned with the way in which the tide distributes wave energy within the tidal range. Despite these differences, both models indicate that platforms eventually attain states of dynamic equilibrium. Using data from a variety of morphogenic environments, the models suggest that sufficient time has been available since the sea reached its present level, for shore platforms to be at, or close to their equilibrium states.